Re-investigation of the (3, 0) band in the b4Σ− - a4Π system for nitric oxide by laser absorption spectroscopy

作者：Chuanliang Li; Ligang Shao; Hailing Wang; Qinghong Zhou; Xuanbing Qiu; Jilin Wei; Lunhua Deng; Yangqin Chen

来源：Journal of Molecular Spectroscopy, 2017.

• Nitric oxide radical
• Laser absorption spectroscopy
• Molecular constants

Nitric oxide (NO) radicals in the a4Π state were produced by discharging the mixture of NO gas and helium at the audio frequency. In the near infrared region, the spectra of the b4Σ− - a4Π system of the NO radical were studied by optical heterodyne - concentration modulation laser absorption spectroscopy. More than one hundred and thirty lines and eleven branches were recorded for the first time and assigned to the (3, 0) band. A global fitting was carried out to extract the molecular constants. In particular, the parameters D, p, γ and AD were precisely determined.
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